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ECOBEE SMART THERMOSTAT PREMIUM WITH POWER EXTENDER KIT (PEK) Error

CONF DIAGNOSIS PART MATCH ACTION
85%
CONF
Ecobee Power Extender Kit (PEK)
The PEK utilizes a multiplexing circuit to provide power and control signals over a limited wire count. Failure of the internal diode bridge or switching logic prevents the thermostat from establishing a stable 24VAC return path (Common), triggering a system-wide error. Replacing the PEK restores the integrity of the multiplexed signal and ensures the thermostat receives the necessary current for its high-draw logic board.
SKU: EB-V3-PEK01
Ecobee Power Extender Kit (PEK)
CHECK PRICE
15%
CONF
Secondary Circuit / Wiring Check
Inspect wiring harness.
Secondary Circuit / Wiring Check
CHECK PRICE

DIY Repair Guide

Watch exactly how to replace the Ecobee Power Extender Kit (PEK).

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